/*
**  ClanLib SDK
**  Copyright (c) 1997-2010 The ClanLib Team
**
**  This software is provided 'as-is', without any express or implied
**  warranty.  In no event will the authors be held liable for any damages
**  arising from the use of this software.
**
**  Permission is granted to anyone to use this software for any purpose,
**  including commercial applications, and to alter it and redistribute it
**  freely, subject to the following restrictions:
**
**  1. The origin of this software must not be misrepresented; you must not
**     claim that you wrote the original software. If you use this software
**     in a product, an acknowledgment in the product documentation would be
**     appreciated but is not required.
**  2. Altered source versions must be plainly marked as such, and must not be
**     misrepresented as being the original software.
**  3. This notice may not be removed or altered from any source distribution.
**
**  Note: Some of the libraries ClanLib may link to may have additional
**  requirements or restrictions.
**
**  File Author(s):
**
**    Magnus Norddahl
*/

#pragma once

class CL_XPathToken
{
public:
	enum Type
	{
		type_none,
		type_bracket_begin,
		type_bracket_end,
		type_dot,
		type_double_dot,
		type_at_sign,
		type_comma,
		type_double_colon,
		type_name_test,
		type_node_type,
		type_operator,
		type_function_name,
		type_axis_name,
		type_literal,
		type_number,
		type_variable_reference
	};

	enum NodeType
	{
		node_type_comment,
		node_type_text,
		node_type_processing_instruction,
		node_type_node
	};

	enum Operator
	{
		operator_parenthesis_begin,
		operator_mod,
		operator_div,
		operator_multiply,
		operator_union,
		operator_slash,
		operator_double_slash,
		operator_plus,
		operator_minus,
		operator_or,
		operator_and,
		operator_compare_equal,
		operator_compare_not_equal,
		operator_less,
		operator_less_equal,
		operator_greater,
		operator_greater_equal,
		operator_assign,
		operator_parenthesis_end,
	};

	struct Value
	{
		NodeType node_type;
		Operator oper;
		CL_String str;
	};

	Type type;
	Value value;
	CL_StringRef::size_type pos, length;

	CL_XPathToken()
	: type(type_none), pos(0), length(0)
	{
	}
};
